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Finding the Fourth Proportional to 18,151.76, 25,030.44 and 14,368.88

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Solution

The fourth proportional to 18,151.76, 25,030.44 and 14,368.88 is: 19,814.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,151.76 : 25,030.44 = 14,368.88 : x
  2. Step 2: Convert to fraction form
    18,151.76/25,030.44 = 14,368.88/x
  3. Step 3: Cross multiply
    18,151.76x = 25,030.44 × 14,368.88
  4. Step 4: Simplify right side
    18,151.76x = 359,659,388.71
  5. Step 5: Solve for x
    x = 359,659,388.71/18,151.76
  6. Step 6: Final answer
    x = 19,814.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.